오니토 제거 공사에 의한 한강 수질 개선에 관한 연구

이찬열,조봉연 동국대학교 산업기술연구원 2000 산업기술논문집 Vol.11 No.2

한강은 수질개선 및 홍수방지의 목적으로 1982년에 "한강종합개발사업"을 시작으로 하구개선, 하수처리장 및 분류 하수관거 건설, 한강주변 도로 건설이 1986년 완성되어 도시 미관뿐만 아니라 수질도 어느 정도 개선되었다. 그런, 현재에 이르러 한강상류에서 홍수시 떠내려온 각종 토사와, 부영양화의 오염원인 질소, 인등을 포함한 오염 물질들의 퇴적과 이동에 따른 수질악화가 현저하게 나타나고 있는 실정이다. 이에 따라 서울시는 1993년에 '한강하류 수질 보전 대책수립'을 세워 상수원 보호구역인 잠실 수중보에서 오니 준설사업을 실시하였다. 특히 각 지천 하구의 퇴적된 오니토가 부영양화와 녹조 발생 등 수질을 악화시킴에 따라, 매년 한강 본류에 악영향을 끼치는 각 지천의 오니토 제거를 병행하여 한강 오니토 제거공사를 해오고 있다. 그 결과 저질의 오염도는 개선되었다. 즉, 수질개선을 위해 지속적인 준설 작업을 시행하고, 보다 근본적이고 장기적인 차원의 수질 보전과 관리 대책이 강구되어야 할 것이다. 또한, 수질개선을 위해, 오염원을 사전에 예방하여야 하며, 또한 하수처리시설 확충 및 처리방법 개선 등을 통한 처리효율을 향상시켜야 한다. Since in 1986, the water quality of the Han river has been improved after finishing the integral development project of the Han river started in 1982. The propose of this project was to keep good water quality and prevent flood by improvement of the couth of a river, sewage treatment works, separate sewage line construction and road construction around the Han river. However, the water quality of the Han river is now getting worse due to lots of earth and sand coming from the upper stream during flood and water pollutants including nitrogen and phosphorus, known as source of eutrophication. The city of Seoul, therefore, established the preservation measures for the water qualities in the downstream of the Han river. After performing polluted mud dredge project at Chamshil's underwater beam, which is in water supply facilities, the bottom water quality became better. To improve the water quality of the Han river, it is necessary to establish systematic strategies for the water preservation. The basic strategy is to directly prevent the pollutant emission from the sources and increase the treatment efficiency in terms of the construction of sewage works at several locations as well as the improvement of treatment method.

養漁飼料의 添加物로서 라이신 效果에 關한 硏究

劉奉錫,李廷烈,金鐘連 군산대학교 1991 群山水産專門大學 硏究報告 Vol.25 No.2

To investigate the effect of lysine as a additive to fishfeed, a series of studies on Israeli carp(Cyprinus carpio) and eel(Anguilla japonica) were carried out during the cultivation period of 124 days. During the cultivation periods, the daily growth and growth rate were appeard 0.55g and 6.7times for elver, 1.11g and 4.0 times for young eel, 40.97g and 2.8 times for preadult eel, 1.96g and 3.8 times for fingerling carp, 14.94g and 6.1 times for preadult early, and 161.31g and 2.0 times for adult Israeli carp, respectively. The effect of lysine as a additive to fishfeed were respectively showed superior results in 0.3% for elver, in 0.1% for young eel, and in 0.5% for Israeli carp. But not shown the effect of lysine in preadult of eel. As a results, it was considered that a amounts of lysine added recommend to fishfeed 0.1% of lysine for elver and 0.5% for Israeli carp.

액막을 통한 이산화탄소의 촉진수송

염봉열,이용택 忠南大學校 産業技術硏究所 1996 산업기술연구논문집 Vol.11 No.1

A computer program was developed that could predict the permeation rates of CO₂across the liquid membrane using potassium carbonate as a transport carrier. This program was coded with the FORTRAN language to be used for an IBM compatible personal computer. The permeation rates of CO₂were predicted with various operating parameters such as a thickness of liquid membrane, a partial pressure of CO₂, a concentration of transport carrier, and a system temperature. Since the previous studies on the facilitation transport of CO₂have been performed at the room temperature using the constant carrier concentration, their results could not be utilized in a broad operating condition. As the temperature increases 50℃ higher than the room temperature of 25℃, the typical facilitation factor increases with a factor of minimum 5, depending on the membrane thickness with the other typical conditions. It should be noted that the facilitation factor increases significantly as the membrane thickness increases at higher temperature while the facilitation factor increases slowly at lower temperature. It was found that the higher the concentration of the carrier is, the larger the permeation rate of CO₂is. However, the facilitation factors of CO₂at lower concentration of K₂CO₃are predicted to be higher with a sufficiently thin membrane where they are controlled by the diffusivities of ions rather than by the chemical reaction and the solubility of CO₂plays a major role.

임실관촌 사선대 일대의 식물상과 분포

길봉섭,김창환,김무열,이은복 원광대학교 생명공학연구소 1997 생명공학연구소보 Vol.5 No.1

임실 관촌 사선대의 관속식물은 66과 145속 177종 1아종 20변종 4품종으로 총 202종류가 분포하고 있는 것으로 조사되었다. 조사기간이 가을 한 철에 불과했던 사정을 감안한다면 이보다 더 많은 종류가 있을 것이 확실하다. 사선대의 식물군락은 식물사회학적인 방법으로 분류한 결과 목본은 졸참나무군락(Quercus serrata community), 가침박달군락(Exochorda serratifolia community), 개서어나무군락(Carpinus tschonoskii community), 느티나무군락(Zelkova sarrata community), 상수리나무군락(Quercus acutissima community), 갈참나무군락(Quercus aliena community), 긴산개나리군락(Forsythia saxatilis var. lanceolata community) 그리고 리기다소나무식재림(Pinus rigida plantation) 등으로 구분되었고, 초본은 복수초군락(Adonis amurensis community), 피나물군락(Hylomecon vernale community)으로 총 9개군락과 1식재림으로 나누어졌다. 조사지의 식생은 피나물의 대형군락과 복수초군락, 긴산개나리군락 및 가침박달군락 등이 다른 곳에서 찾아보기 힘들 만큼 식물 분포학상 특이하며 그만큼 중요하므로 이를 특별히 보호해야 할 필요가 있다. 아울러 할미밀망, 큰잎산꿩의다리, 조팝나무는 한국특산식물이다. 흥미로운 점은 조사지가 비교적 낮은 곳에 위치하는데도 불구하고 할미밀망, 큰잎산꿩의다리, 피나물, 복수초 등 비교적 높은 곳에 분포하는 식물들이 이곳에 난다는 것은 국지적인 기후의 특수성 때문일 것으로 생각된다. 즉, 관촌 사선대 일대는 기온이 낮아서 옛부터 해빙이 늦게 되는 곳이라는 점이다. 또, 긴산개나리군락은 우리나라에서 가장 큰 자연군락이며 이곳이 분포의 남한계선이어서 이 군락지는 천연기념물로 지정되어 보호하고 있다. The flora of Saseon-dae, kwanchon, Imsil-gun was composed of 66 families, 145 genera, 177 species, 1 subspecies, 20 varieties, 4 forma and 202 taxa. The vegetaion was classified into 9 communities and 1 planted forest : Quercus serrata community, Exochorda serratifolia community, Carpinus tschonoskii community, Zelkova serrata community, Quercus acutissima community, Quercus aliena community, Forsythia saxatilis var. lanceolata community, Adonis amurensis community, Hylomecon vernale community and Pinus rigida plantation. Several ferns, for example, Pyrrosia linearifolia growing on the rock, Polystichum tsussimense, Camptosorus sibiricus, Asplenium trichomanes, Dryopteris lacera, and Dryopteris bissetiana, endemic species such as Clematis trichotoma, Thalictrum punctatum and Spiraea prunifolia var. simpliciflora were of great significance in terms of the geographical distribution of plants. Especial F. saxatilis var. lanceolata species are forming the biggest natural community and recognized southern boundary line of distribution in Korea, therefore, it should be protected with a special counterplan including designate as a precious natural monument.

65세 이상 노인 급성 심근경색증 환자의 사망에 영향을 미치는 인자들

정봉기,양금열,손준혁,주시내,남홍우,전용덕,이홍순 대한노인병학회 2001 대한노인병학회지 Vol.5 No.2

제올라이트 A를 혼화재로 사용한 모르터의 특성 연구

조병후,최고열,이창용,김봉주 서울産業大學校 1999 논문집 Vol.50 No.2

The characteristics of cement pastes and mortars containing zeolite A were investigated. The hydration of C₃S was a little restrained in cement pastes containing Zeolite A. The cement pastes containing zeolite A also exhibited that the formation of Ca(OH)₂ decreased and the amount of macropores increased with zeolite content. The strength of the mortar admixed zeolite A was lower than that of plain and decreased with zeolite content. These results would be related to the residual NaOH in the powder of zeolite A, which had influence on the cement hydration.

수출입 컨테이너 장치장 배정을 위한 소프트웨어의 개발

김갑환,김홍배,홍봉희,김기영,배종욱,최진오,김두열,이영기,박영만,박강태,손행대 한국경영과학회 1995 經營 科學 Vol.12 No.3

The Pusan Container Terminal faces a rapid increase in berthing time of container ships as well as in waiting time of external trucks, which is due to an absolute lack of yard space. This research is focused on the development of a decision support system for the planning of the container terminal yard assignment so that the yard space would be utilized most effectively. Efforts should be given to the reasonable assignment of the yard storage and the dynamic adaptation to the ever changing environment. The software introduced here is based o the know-how of the field exports and its framework takes the approach of the hierarchical decision making.

Gemcitabine and oxaliplatin combination as first-line treatment for advanced pancreatic cancer: a multicenter phase II study

Lee, Kyung Hee,Kim, Min Kyoung,Kim, Yeol Hong,Ryoo, Baek Yeol,Lim, Ho Yeong,Song, Hong Suk,Kim, Hoon Kyo,Lee, Myung Ah,Im, Seock Ah,Chang, Heung Moon,Cho, Jae Yong,Zang, Dae Young,Kim, Bong Seog,Kim, Springer-Verlag 2009 Cancer chemotherapy and pharmacology Vol.64 No.2

IMPLEMENTATION OF THE MOXIBUSTION CAUTERIZER FOR PROSTATISM

Bong-Kwan Jo,Jong-Il Bae,Sung-Yeol Kwon,Kyung-Il Woo,Jong-Kyung Kim,Dong-Cheol Lee,Do Kim,Young-Kyu Ko,Sang-Youl Jang,Bong-Jo Jo,Ja-Sung Koo,Dong-Young Lee,Ho-Jin Lee 제어로봇시스템학회 2004 제어로봇시스템학회 국제학술대회 논문집 Vol.2004 No.8

다얼성 옥수수 연구 4 : IK형 분얼 옥수수의 잎 특성

Bong Ho Choe,Hee Bong Lee,Won Koo Lee,Kwon Kyu Kang,Chang Yeol Choi 한국작물학회 1989 한국작물학회지 Vol.34 No.4

분얼하는 옥수수 교잡종 (IK//1R1/B68)의 잎이 분얼하지 않는 옥수수(진주옥)의 잎과 길이나, 폭 또는 면적에 있어서 차이가 있는지의 여부를 알기위해 주경 또는 분얼경의 지엽으로 부터 아래로 9개 잎을 수확기에 취하여 엽장, 엽폭, 엽면적을 측정하였다. 1. 개체당 주경의 평균 엽장은 IK형 (IK//IRI/B68)이나 진주옥이 거의 같았으나 평균 엽폭은 IK형이 진주옥보다 약 2cm 좁았다. 평균 엽면적 역시 IK형이 적었는데 그 이유는 엽폭이 좁았기 때문이었다. 2. IK형 옥수수에서 주경과 분엽경간의 잎특성(장, 폭. 면적)은 서로 비슷하였다. 3. IK형 옥수수는 착수절 바로 아래 절의 잎이 가장 길었고 착수절 바로 위의 잎이 가장 넓었다. 4. IK형 옥수수 잎의 절입별 병이계수를 비교한 결과 착수절을 포함한 착수절 근처 잎이 변이계수가 가장 낮았고, 착수절에서 멀리 떨어진 잎일수록 변이계수의 값이 컸다. 특히 정엽의 변이계수는 다른 잎들보다 훨씬 컸다. 이같은 경향은 주경과 분얼경의 잎이 모두 같았다. 5. 기존의 공식(장 폭 0.75)에 의해 추정한 엽면적보다는 직접 측정한 엽면적이 컸다. 따라서 IK형 옥수수의 엽장과 엽폭에 의한 엽면적 추정은 기존의 0.75 대신에 0.80을 이용하는 것이 보다 타당할 것으로 생각된다. Leaf characteristics of main stem and tiller of IK type maize (IK/ /IRI/B68) were compared with those of Jinjoo Ok hybrid which are not usually tillered. A total of nine leaves from flag leaf to the third or the fourth leaf below ear-bearing node were sampled from each stem or tiller. There was no significant difference in mean leaf length between IK/ /IRI/B68 and Jinjoo Ok. But the mean leaf width of IK/ /IRI/ B68 was about 2 cm narrower than that of Jinjoo Ok. The mean leaf area of the IK/ /IRI/B68 was also smaller than that of Jinjoo Ok due to the narrower leaf width. There were not significant differences in mean leaf characteristics between main stem and tillers of IK/IRI/B68. The longest leaf was the leaf below the ear-bearing node and the widest leaf was the leaf just above the ear-bearing node. Mean length. width and area of leaf on main stem and tillers were similar. Coefficients of variation calculated for individual leaf indicated that the leaves near the ear-bearing node were more uniform than others. The leaf area measured was significantly greater than that estimated by formular, length x width x 0.75. New constant to estimate leaf area of tillering maize was derived as 0.8.